Peg for string musical instruments



Aug. 4, 1925.

A. CUOGHI PEG FOR STRING NUSCAL INSTRUMENTS Filed OCb. 13; 1922 ATTORNEY 1 Aar/BERT (LOGHI,

NVENTOR Patented Aug. 4, 192.5.

ASHBERT oUoeHr, or BROOKLYN, lnaw Yoan.

PEG FOR STRING MUSICAL ISTRUMENTS.

Application 1ed October 13, 1922. Serial No. 594,342.

To all 'whom t may concern.'

Be itrlrnown that I, Asrrnnr CUoGHi, citizen of Italy, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Pegs for String Musical Instruments, of which the following is a specification.

This invention relates to pegs for string musical instruments.

More particularly the invention relates to the type of peg employing frictional means which acts to prevent rotation of the stem to which the string is connected.

Some of the objects of the present invention are z--to produce a comparatively practical and effectual device of the character mentioned; to produce a peg of the character mentioned which is especially adapted for use in connection with the fifth string of a banjo; and with these and other objects in view the invention resides in the particular provision, construction, relative disposition and functions of the parts hereinafter fully described and illustrated in the accompanying drawing, in which:

Figure 1 is a sectional connection of the peg of the present invention.

Figure 2 is a detail sectional view taken on the line 2 2, Figure 1.

Figure 8 is a detail sectional view taken on the line 8 8, Figure 1.

Figure 4 is a perspective view of the attaching member.

Figure 5 is a perspective view of the stem.

The peg of the present invention, generally, comprises attaching means, means to which the musical string is connected, and means allowing the adjustment or tightening of the string and at the same time acts to prevent retrograde movement and loosening of the string.

Specifically the peg of the present invention is made up of a member 10, stem 11, member 12, and finger piece 13. In use, the member 10 is planted in the iinger-board designated 14. A key 15 on the member 10 prevents turning ofthe member 10. The other parts of the peg are carried by the member 10 for turning movement with respect thereto. The stem 11 has a portion thereof extending through a bore in the member 10, and the said stem extends upwardly some distance from one end of the member 10. The stem 11 is square in cross section and has arranged thereon the member 12. The member 12 has a square bore which fits the stem 11 and therefore the member 12 is prevented from turning on the stem 11. The stem and member 12 have holes 16 and 17 respectively which align and accommodate one end of a string of the instrument to which the peg is attached. The upper end of the stem has detachably connected thereto a finger piece 18 which has a square bore therein to accommodate the extremity of the stem 11. This upper extremity of the stem 11 has a screw threaded bore therein which registers with a plain bore in a port-ion of the finger piece and the two bores accommodate a screw 19 by virtue of which the detachable connection of the finger piece 18 is effected. The member 12 has a recess 20 therein, and an eX- pansible coil spring 21 is disposed in the recess 2O with one end thereof against the wall of the recess and the opposite end thereof against a portion of the finger piece 18. The extremity of the stem 11 opposite to the extremity having the finger piece 18 thereon, has a friction cone 22. The member 12 embodies a friction cone 28. The member 10 has a conical bore 24 therein and a conical bore 25 therein. Cone Z2 co-acts with the wall of the bore 24 whereas the cone23 co-acts with the wall of the bore 25. This co-action is caused by virtue of the spring 21 which causes the cones 22 and 28 to move toward cach other but which are held separated by contact with the walls of the bore mentioned. It will now be manifest that an end of a string may be connected to the main part of the peg and the same may b'e turned to tighten the string fory the proper tune, while the co-action of the cones 22 and 28 with the walls of the bores 24 and 25 respectively will act to prevent retrograde movement of the main part of the peg and therefore prevents loosening of the string.

lVhat is claimed:

1. A tuning peg comprising an attaching member having anti-turning means, a stem having a detachable finger-piece at one end and a frictional cone at the other end fixed thereto, a frictional cone arranged for movement on said stem, the said attaching member having cone shaped bores therein tapering in opposite directions with whose walls said cones respectively coact, registering openings formed in said frictional cone and said stem and means for maintaining the coaction of said cones and said walls, said means comprising a spring interposed beg 'l v 1,548,777

tweeni said linger piece and the frictional cone onsaid stem.

2. In combination with the finger board of a string musical instrument having a tapering bore therein, a. key-Way communicating With said bore, a conical shaped memher for seating engagement With said tapering bore and having a key for reception in said key-Way, a. pair of conical bores formedin said member, each conical bore tapering'in opposite directions, a frictional cone for co-action With one of said conical bores, a stem slidably extending through said frictiona-l cone and formed with a cone shaped head for co-action with the othei` of said cone shaped bores, registering openings formed in said frictional cone and said stem, a linger piece on the free end of said stem, and means for holding said frictional cone and the conical head on said stem in coaction With the respective conical bores.

In testimony whereof I have aiiixed my signature.

ASHBERT CUOGHI. 

